'Double star' moment for Jupiter and Venus in the night sky

The planets Venus, bottom, and Jupiter, top center, light the sky above Matthews, N.C., Monday, June 29, 2015. The two brightest planets appeared to be unusually close together Monday. (AP photo)

(CNN) -

Put down the cell phone. Go outside. Look up.

Tuesday night, Jupiter and Venus will culminate a month-long dance with what astronomers say will be a dazzling display, appearing just a fraction of a degree apart from one another in the night sky -- a show that some astronomers say could account for the "Star of Bethlehem" mentioned in the Bible.

"To the eye they'll look like a double star," Sky & Telescope editor Kelly Beatty said on the magazine's website.

To see the lineup, look to the west-northwest shortly after sunset.

This isn't a particularly rare event; such conjunctions are fairly frequent, thanks to how Earth and the two planets line up in the solar system, according to Sky & Telescope.

But the combination of how close the planets will appear -- one-third of a degree -- the viewing angle at many latitudes and the time of day make this a particularly special event that ranks "very highly" among conjunctions, Rice University astronomer Patrick Hartigan wrote on his website.

Although the planets will appear to draw near one another in August and again in October, the next such event to rival Tuesday night's won't happen until 2023, he said.

And although the two planets will appear to be close together, in reality, millions of miles of empty space separate them.

The lineup won't have any impact on Earth or anything else in the solar system, except scads of folks looking up for a better view, Sky & Telescope senior editor Alan MacRobert said.

"These planetary groupings in the sky have no effect on Earth or human affairs -- except for one," he said. "They can lift our attention away from our own little world into the enormous things beyond."

Check out NASA's Amazing Sunset Sky Show video on YouTube for more. A link can be found here.

Technical Discussion

Monday will be bright and chilly. High temperatures will be in the mid to upper 30s in inland sections and lower 40s along the shore. A cell of high pressure will move overhead, and then to the east of the region today and will be the dominating factor in the weather, thus promising the quieter spell.

Monday will be bright and chilly. High temperatures will be in the mid to upper 30s in inland sections and lower 40s along the shore. A cell of high pressure will move overhead, and then to the east of the region today and will be the dominating factor in the weather, thus promising the quieter spell.

This Sept. 24, 2017, photo provided by Michael Kass shows Yann Arnaud during a Cirque du Soleil performance in Toronto. Arnaud died early Sunday, March 18, 2018, after falling while performing during a show on Saturday in Tampa, Fla. (Michael Kass via AP)

A Cirque du Soleil performer died Saturday night after he fell during a performance in Tampa, Florida.

Nearly two weeks after 16-year-old Amy Yu vanished with 45-year-old Kevin Esterly, the pair was found Saturday in Mexico and the man was arrested, authorities say. (Allentown Police Department)

Nearly two weeks after a 16-year-old Pennsylvania girl vanished with a 45-year-old man, the pair was found Saturday in Mexico and the man was arrested, authorities say. Amy Yu was "unharmed and in good health."

Nearly two weeks after a 16-year-old Pennsylvania girl vanished with a 45-year-old man, the pair was found Saturday in Mexico and the man was arrested, authorities say. Amy Yu was "unharmed and in good health."

Technical Discussion

THE FINAL DAY OF SPRING… Some overnight cloud cover prevented temperatures this morning from going as cold as they could have, if the sky would’ve been clear. Now that they’re eroding, the rest of the day will be mostly sunny. After starting out in the 20s and low 30s, temperatures will peak in the upper 30s and lower 40s this afternoon – well below the average high of 49!

THE FINAL DAY OF SPRING… Some overnight cloud cover prevented temperatures this morning from going as cold as they could have, if the sky would’ve been clear. Now that they’re eroding, the rest of the day will be mostly sunny. After starting out in the 20s and low 30s, temperatures will peak in the upper 30s and lower 40s this afternoon – well below the average high of 49!